Mac OS: support for high resolution OpenGL windows.

Methods Fl::event_x_pixel() and Fl::event_y_pixel() committed at r.10941
are removed. Instead method Fl_Gl_Window::pixels_per_unit() is added.

The documentation explains in more detail how to write cross-platform
FLTK code supporting high resolution OpenGL windows on retina displays.

The examples/OpenGL3test.cxx app exercises Fl_Gl_Window::pixels_per_unit().

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10945 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 0 insertions, 15 deletions

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index ed9872f91..02b8e7ce1 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -972,7 +972,6 @@ static void update_e_xy_and_e_xy_root(NSWindow *nsw)
 {
   NSPoint pt;
   pt = [nsw mouseLocationOutsideOfEventStream];
-  Fl::e_window_ = [(FLWindow*)nsw getFl_Window];
   Fl::e_x = int(pt.x);
   Fl::e_y = int([[nsw contentView] frame].size.height - pt.y);
   pt = [NSEvent mouseLocation];
@@ -980,13 +979,6 @@ static void update_e_xy_and_e_xy_root(NSWindow *nsw)
   Fl::e_y_root = int(main_screen_height - pt.y);
 }
 
-int Fl::event_x_pixel()	{
-  return e_x * Fl_X::resolution_scaling_factor(Fl::e_window_);
-}
-
-int Fl::event_y_pixel()	{
-  return e_y * Fl_X::resolution_scaling_factor(Fl::e_window_);
-}
 
 /*
  * Cocoa Mousewheel handler
@@ -2740,13 +2732,6 @@ static FLTextInputContext* fltextinputcontext_instance = nil;
 @end
 
 
-// For Fl_Gl_Window on retina display, returns 2, otherwise 1
-int Fl_X::resolution_scaling_factor(Fl_Window* win)
-{
-  return (fl_mac_os_version >= 100700 && win && win->as_gl_window() && Fl::use_high_res_GL() && win->i && win->i->mapped_to_retina()) ? 2 : 1;
-}
-
-
 NSOpenGLPixelFormat* Fl_X::mode_to_NSOpenGLPixelFormat(int m, const int *alistp)
 {
   NSOpenGLPixelFormatAttribute attribs[32];